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explicitly than Wallace has here stated the argument against the progressive amelioration of human affairs, from the sole principle of population. "So will his anticipation prevent Mr. Malthus's discovery;" for it happens that Wallace's book was published so long ago as the year 1761. As to the details of the Essay, I shall leave them to the connoisseurs, not pretending to know much about the matter; but as to the general principle or ground-work, I must contend that it was completely pre-occupied: Mr. Malthus has no more pretentions to originality on that score, than I or any one else would have, who after having read Mr. Malthus's work undertook to retail the arguments contained in it and did it in words a little different from his own.-" Oh! but," I hear some one exclaim," the geometrical and arithmetical "series! Has Wallace said any thing of them! "did he find them out, or was not this discovery reserved entirely for the genius and "penetration of Mr. Malthus?" Why really I do not know: whether after having brought his principle to light, he christened it himself, is more than I can pretend to determine. It seems to me sufficient for Wallace to have said that let the one ratio increase as fast as it would, the other would increase much faster, as this is all that is practically meant by a geometrical and arithmetical series. I should have no ob

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jection to let Mr. Malthus have the honour of standing godfather to another's bantling (and Mr. Shandy was of opinion that it was a matter of as great importance to hit upon a lucky name for a child as to beget it) but that the technical phrase he has employed as a convenient shorthand method of explaining the subject, in reality applies only to one half of it. The gradual increase applies only to the degree of cultivation of the earth, not to the quantity. These two things are palpably distinct. It does not begin to take place till the whole surface of the earth has been cultivated to a certain degree, or only with respect to those parts of it which have been cultivated. It is evident that while most of the soil remained wholly unoccupied and uncultivated, (which must have been the case for many ages after these two principles began to operate, and is still the case in many countries) the power of increase in the productions of the earth, and consequently, in the support of population would be exactly in proportion to the population itself, for there would be nothing more necessary in order to the earth's maintaining its inhabitants, than that there should be inhabitants enough to till it. In this case, the cultivation of the earth would be limited by the population, not the population by the state of the cultivation. Where there was no want

of room, and a power of transporting them. selves from place to place, which there would naturally be in great continents, and in gradually increasing colonies, there could be no want of subsistence. All that would be wanted would be power to raise or gather the fruits which the earth had in store, which as long as men were born with hands they would be always able to do. If a certain extent of ground easily maintained a certain number of inhabitants, they would only have to spread themselves over double the surface to maintain double the num ber. The difficulty is not in making more land maintain more men, but in making the same spot of ground maintain a greater number than it did before. Thus Noah might have taken possession of the three contiguous quarters of the globe for himself and his three sons; and, if instead of having three sons, he had had three hundred, there would, I believe, have been no danger of their starving, but the contrary, from the rapid increase of population. What I mean to shew is, that it is not true as a general principle that the increase of population and the increase in the means of subsistence are necessa, rily disproportionate to each other, that the one is in a geometrical, the other is in an arithmetical ratio; but, that in a particular and very important view of the subject, the extent of

population is only limited by the extent of the earth, and that the increase of the means of subsistence will be in'proportion to the greater extent of surface occupied, which may be enlarged as fast as there are numbers to occupy it. I have been thus particular, because mathematical terms carry with them an imposing air of accuracy and profundity, and ought, therefore, to be applied strictly, and with the greatest caution, or not at all. I should say, then, that looking at the subject in a general and philosophical point of view, I do not think that the expression of an arithmetical and geometrical series applies: for, with respect to the extent of ground occupied, which is one thing on which population depends, and in the first instance always, this might evidently be increased in any ratio whatever, that the increase of population would admit, until the earth was entirely occupied; and after that there would be no room either for a geometrical or arithmetical progression; it would be at an absolute stand. The distinction is therefore confined to the degree of art and diligence used in the cultivation of those parts which have been already occupied. This has no doubt gone on at a very slow kind of snail's pace from the very first, and will I dare say continue to do so. Or to adopt Wallace's distinction, the increase of population is either not restricted at all by the "limited nature of

"the earth," or it is limited absolutely by it: it is only kept back indefinitely by the "limited fertility" of the earth; and it cannot be said to be kept back necessarily by this, while there are vast tracts of habitable land left untouched. Till there is no more room, and no more food to be procured without extreme exertion and contrivance, the arithmetical and geometrical ratios do not naturally begin to operate; and the gradual increase that might take place after that period, is not in my opinion (who am no great speculator) of sufficient importance to deserve a pompous appellation. I would, therefore, rather stop there, because it will simplify the question. Till the world is full, or at least till every country is full, that is, maintains as many inhabitants as the soil will admit, namely, till it can be proved satisfactorily that it might not by taking proper methods be made to maintain double the number that it does, the increase of mankind is not necessarily checked by the "limited extent of the earth," nor by its "limited fertility," but by other causes. Till then population must be said to be kept down, not by the original constitution of nature, but by the will of man. Till then, Mr. Malthus has no right to set up his arithmetical and geometrical ratios upon the face of the earth, and say they are the work of nature. You, Sir, will not be at a loss to perceive the fallacy which lurks under the gloss which Mr. Malthus has

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